Is it possible, tracking beneath techo-scientific imaginaries, to reveal
archaic foundations of representations? The aim of this talk was to present a possible archeology of representations of technics.

January 2013: Seminar L'éco-citoyen, un concept recyclable? LERSEM, Université Montpellier 3, Montpellier, France
"L'homme au sommet : archaïsme et ambiguïté du rapport à la nature"
With neolithisation, humankind symbolically settles in the center of the world : is this the starting point of an anthropological path, explored to the extreme in the
West?

November 2012 : Symposium La montaña en la Humanidades y
las Ciencias Sociales, Universidad del País Vasco, Vitoria-Gasteiz, Spain.INVITED
TALK
«Montagne et néolithisation : essai d'archéologie symbolique»
With the work of Olivier Keller, Historian of Mathematics, the interpretations of verticality and of the center of the world can be seen as a result of neolithisation. It changes radically our
understanding of symbols of ascension and verticality, reintroducing an historical process in figures that were seen consubstantial of human mind.

October 2011: Colloquium RUMEURS DE SCIENCE, Université Jean-Monnet,
site de Roanne.
«A armes égales : pourquoi la science ne peut pas gagner en étant seulement raisonnable»
Talk on the importance of affects in the process of a rumor : why logical reasonning isn't enough to fight a rumor and why it is necessary to understand the imaginary part of this kind of
narrative.